#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<string.h>

int main()
{
	//char arr1[] = "abc";
	//char arr2[20] = "efg\0xxxxxxxxxx";
	//strncat(arr2, arr1, 2);

	char b[] = "abcdef";
	char a[] = "ab";

	char* pf;
	pf = strstr(a, b);
	return 0;
}